Impurity removal device for heat supply network

Abstract

The utility model relates to an impurity removal device for a heat supply network. Comprising a filter assembly and a drawer type iron removal assembly, the filter assembly comprises a main pipeline, a flange plate is mounted at one end of the main pipeline, an end plate is mounted at the other end of the main pipeline, a cylindrical filter screen is mounted in the main pipeline, and a rotary cleaning assembly is mounted in the filter screen; the outer end of a rotating shaft of the rotary cleaning assembly is located in a shaft seat in the center of the end plate and is driven by an external driving motor, a backflushing assembly is further installed on the end plate, and a water outlet pipe is installed at the bottom of the main pipeline; the drawer type iron removal assembly comprises a box body with a top connector at the top and a bottom connector at the bottom, a plurality of windows are formed in the side wall of the box body in the vertical direction, and a detachable drawer type strong magnetic assembly is fixedly installed in each window. The impurity removal device for the heat supply network has the functions of filtering, removing impurities and removing iron, provides a sufficient impurity removal function for circulating water of the heat supply network, and ensures that the circulating water in the heat supply network is clean.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipe network impurity removal equipment technical field, especially relate to a kind of for heat network's impurity removal device. BACKGROUND

[0002] Heat network refers to heat supply pipe network, and it is the main component of central heating system, and it undertakes the task of heat energy transport. Heat network usually uses water as circulating medium, and with the water heat circulation of heat network, impurities are usually mixed in the pipe system of heat network, these impurities include the falling objects of system pipeline, scale and some iron, biological slime etc., and the circulating water mixed with impurities can cause pipeline blockage, heating equipment failure, service life reduction, heating energy consumption increase and poor heating effect, and other problems, and necessary intervention measures are needed to solve the foregoing problems.

[0003] By installing filter device in the pipe system of heat network, the foregoing problems can be solved, and the filter device used in the prior art is usually filter element, and after a period of operation, the filter hole of filter element is blocked, and cleaning is needed, and if not cleaned in time, pipe network flow will be reduced, and other problems will occur, so the way of simply setting filter element cannot meet the system impurity removal requirements. In addition, the filter element is usually difficult to remove small iron particles, and it is difficult to achieve sufficient impurity removal effect. In summary, impurity removal device for heat network needs to be developed and designed to solve the foregoing technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of for heat network's impurity removal device, with the function of filtering and removing impurities and removing iron, and providing sufficient impurity removal function for heat network circulating water, to ensure the cleanliness of circulating water in heat network.

[0005] The utility model adopts the technical scheme: a kind of for heat network's impurity removal device, including filter assembly and drawer type iron removal assembly;Filter assembly includes main pipeline, one end of main pipeline is equipped with flange, another end is equipped with end plate, cylindrical filter screen is installed in the inside of main pipeline, rotary cleaning assembly is installed in the inside of filter screen, the outer end of rotating shaft of rotary cleaning assembly is located in the shaft seat of end plate center and is driven using external driving motor, backflushing assembly is also installed on end plate, water outlet pipe is installed in the bottom of main pipeline;Drawer type iron removal assembly includes the box with top interface on top and bottom interface on bottom, multiple windows are provided on the side wall of box along vertical direction, detachable drawer type strong magnetic assembly is installed in each window.

[0006] Preferably, the main pipeline of filter assembly includes fine diameter pipeline section and coarse diameter pipeline section, and the filter screen is located in the inside of coarse diameter pipeline section, and an inner support abutting against the stepped position is further provided in the inside of coarse diameter pipeline section, and the inner end of rotating shaft of rotary cleaning assembly is installed in the shaft seat in the middle of inner support.

[0007] Preferably, the rotary cleaning assembly further comprises a scraper, the scraper is fixedly connected with the rotating shaft by a plurality of supporting plates, and the outer edge of the scraper is abutted against the inner wall of the filter screen.

[0008] Preferably, the backflushing assembly comprises a backflushing water pipe and a backflushing water pump installed on the end plate, and further comprises a water source pipeline, and the backflushing water pump is installed between the backflushing water pipe and the water source pipeline.

[0009] Preferably, a blowdown pipe is further installed at the bottom of the fine-diameter pipeline section, and a blowdown gate valve is installed on the blowdown pipe.

[0010] Preferably, a pressure relief safety valve is further installed on the top wall of the coarse-diameter pipeline section, and a pressure gauge is further installed on the outer wall of the water outlet pipe.

[0011] Preferably, the drawer-type strong magnet assembly of the drawer-type iron removal assembly comprises a drawer plate with a handle, a plurality of strong magnet rods are fixedly installed on the drawer plate, a fixing mechanism for fixing the drawer plate is further arranged on the box body, when the drawer plate is fixed with the box body, the strong magnet rods are located in the inner cavity of the box body and the center lines of the strong magnet rods are perpendicular to the center line of the box body.

[0012] Preferably, the fixing mechanism comprises connecting side plates with a plurality of connecting threaded holes installed on both sides of the box body, and connecting holes are arranged on the drawer plate at corresponding positions, and the drawer plate is fixedly connected with the connecting side plates by fixing screws located in the connecting holes and the connecting threaded holes.

[0013] Preferably, a sealing gasket is further installed on the inner side of the drawer plate, and the sealing gasket is clamped between the drawer plate and the side wall of the box body.

[0014] The advantages and positive effects of the present application are as follows:

[0015] The utility model provides a kind of for heat network's impurity removal device, compared with the prior filtering device, the impurity removal device of the utility model is configured with rotary cleaning assembly for built-in filter screen, impurity is stripped from the filter screen in the process of rotary rotation, avoid the problem that the flow rate is reduced due to the continuous blockage of the mesh hole of filter screen by impurity.The backflushing assembly is arranged, and periodic reverse flushing can be started, to further provide disturbance effect to the impurities in the filter screen, promote the impurities on the filter screen to fall off to avoid the problem that the flow rate is reduced due to blockage.The impurity removal device is configured with drawer-type iron removal assembly, and the iron contained in circulating water passing through the drawer-type iron removal assembly is magnetically attracted and intercepted, and the iron magnetically attracted and intercepted can be cleaned by periodically disassembling and pulling out the drawer-type strong magnet assembly.Therefore, the impurity removal device has the functions of filtering and removing impurities and removing iron, provides sufficient impurity removal function for circulating water in heat network, and ensures the cleanliness of circulating water in heat network. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1is the main structure schematic view of the utility model;

[0017] Figure 2 is Figure 1 is the internal structure schematic view of the filter assembly;

[0018] Figure 3 is Figure 1 is the structure schematic view of the drawer type iron removal assembly.

[0019] In the figure:

[0020] 1, flange; 2, thin diameter pipeline section; 3, thick diameter pipeline section; 4, pressure relief safety valve; 5, controller; 6, water outlet pipe; 7, pressure gauge; 8, drawer type iron removal assembly; 8-1, box body; 8-2, top interface; 8-3, strong magnetic rod; 8-4, bottom interface; 8-5, connecting side plate; 8-6, fixing screw; 8-7, window; 8-8, drawer plate; 9, blowdown pipe; 10, blowdown gate valve; 11, end plate; 12, backflushing water pump; 13, driving motor; 14, backflushing water pipe; 15, water source pipeline; 16, filter screen; 17, inner support; 18, support plate; 19, scraper. DETAILED DESCRIPTION

[0021] In order to further understand the invention content, characteristics and effects of the utility model, the following examples are used for detailed description.

[0022] Please refer to Figure 1 The utility model discloses a device for removing impurities for heat supply network, comprising a filter assembly and a drawer type iron removal assembly, wherein the filter assembly is used for providing filtering function for circulating water and removing large particle impurities, and the drawer type iron removal assembly is used for removing iron contained in the circulating water.

[0023] As shown in Figure 1 and Figure 2 It can be seen that:

[0024] The filter assembly comprises a main pipeline, and the flange 1 is installed at one end of the main pipeline, and the end plate 11 is installed at the other end of the main pipeline. Figure 1 As shown in the left end of the main pipeline, the interface end is connected with the pipe network, and the sealing washer is arranged between the end flange of the pipe network and the flange 1 and is fixed and connected by bolts, and the end plate 11 is installed and fixed at the right end of the main pipeline, and specifically, the sealing washer is arranged between the main pipeline and the end plate 11 and is fixed and connected by bolts.

[0025] A cylindrical filter screen 16 is installed inside the main pipeline, and a rotary cleaning assembly is installed inside the filter screen 16, with the outer end of the rotating shaft of the rotary cleaning assembly located in the shaft seat in the center of the end plate 11 and driven by the external driving motor 13. The rotary cleaning assembly driven by the driving motor 13 is arranged to clean the filter screen 16, promote the falling of impurities in the mesh of the filter screen 16, and avoid the problem of reduced flow caused by continuous clogging of the mesh of the filter screen 16.

[0026] In this embodiment, the main pipeline of the filter assembly includes a fine-diameter pipeline section 2 and a coarse-diameter pipeline section 3, the filter screen 16 is located inside the coarse-diameter pipeline section 3, and an inner support 17 abutting the stepped position is arranged inside the coarse-diameter pipeline section 3, and the inner end of the rotating shaft of the rotary cleaning assembly is installed in the shaft seat in the middle of the inner support 17. In this way, the rotating shaft is erected between the shaft seats of the end plate 11 and the inner support 17, improving the stability of the structure, and when disassembly and cleaning are required, the connection between the end plate 11 and the end of the coarse-diameter pipeline section 3 needs to be contacted, and the filter screen 16 and its rotary cleaning assembly are completely pulled out from the inner cavity of the coarse-diameter pipeline section 3, and after cleaning, they can be reinstalled.

[0027] The structure of the rotary cleaning assembly includes the aforementioned rotating shaft, and the rotary cleaning assembly further includes a scraper 19 fixedly connected to the rotating shaft by a plurality of support plates 18, and the outer side edge of the scraper 19 abuts against the inner wall of the filter screen 16. During operation, the scraper 19 rotates, and the outer side edge thereof produces a scraping effect on the inner wall of the filter screen 16, promoting the falling of impurities in the mesh of the filter screen 16 and avoiding continuous clogging of the mesh by impurities.

[0028] A water outlet pipe 6 is installed at the bottom of the main pipeline, as shown in the figure, the water outlet pipe 6 is fixedly installed on the bottom wall of the coarse-diameter pipeline section 3, the filter screen 16 is located above the upper port of the water outlet pipe 6, and the filtered circulating water is discharged through the water outlet pipe 6.

[0029] A backflush assembly is also installed on the end plate 11, which is arranged to periodically start reverse flushing to further provide a disturbance effect on the impurities in the filter screen 16 and promote the falling of impurities on the filter screen 16 to avoid the problem of reduced flow caused by clogging.

[0030] In this embodiment, the backflush assembly includes a backflush water pipe 14 and a backflush water pump 12 installed on the end plate 11, and a water source pipeline 15, the backflush water pump 12 is installed between the backflush water pipe 14 and the water source pipeline 15, and the backflush water pump 12 is started during backflush operation, and the external water source is sent into the inside of the main pipeline in a pressurized state to produce a reverse flushing effect on the filter screen 16.

[0031] In this embodiment, a blowdown pipe 9 is also installed at the bottom of the thin-diameter pipeline section 2, and a blowdown gate valve 10 is installed on the blowdown pipe 9. When backwashing is performed, the flow of circulating water is temporarily stopped, the blowdown gate valve 10 is opened, and the impurities washed down by the mixed flushing water from the internal water source are discharged downward through the blowdown pipe 9 by the backwashing water pump 12.

[0032] In this embodiment, a pressure relief safety valve 4 is also installed on the top wall of the thick-diameter pipeline section 3, and a pressure gauge 7 is also installed on the outer wall of the water outlet pipe 6. The pressure relief safety valve 4 is used to open the pressure relief when the internal water pressure exceeds the limit, thereby ensuring safety, and the pressure gauge 7 is used to measure and display the internal water pressure.

[0033] As shown in FIG. 8, Figure 3 As shown in FIG. 8,

[0034] The drawer-type iron removal assembly includes a box body 8-1 with a top interface 8-2 at the top and a bottom interface 8-4 at the bottom, a plurality of windows 8-7 are provided on the side wall of the box body 8-1 in the vertical direction, and a detachable drawer-type strong magnetic assembly is installed in each window 8-7. The top interface 8-2 is connected to the water outlet pipe 6, and the drawer-type strong magnetic assembly is used to magnetically remove iron contained in the circulating water.

[0035] In this embodiment, the drawer-type strong magnetic assembly of the drawer-type iron removal assembly 8 includes a drawer plate 8-8 with a handle, a plurality of strong magnetic rods 8-3 are installed and fixed on the drawer plate 8-8, and a fixing mechanism is also provided on the box body 8-1 to fix the drawer plate 8-8. When the drawer plate 8-8 is fixed with the box body 8-1, each strong magnetic rod 8-3 is located in the inner cavity of the box body 8-1, and the center line of the strong magnetic rod 8-3 is perpendicular to the center line of the box body 8-1.

[0036] In this embodiment, the fixing mechanism includes a connecting side plate 8-5 with a plurality of sets of connecting threaded holes installed on both sides of the box body 8-1, a connecting hole is provided at a corresponding position on the drawer plate 8-8, and the drawer plate 8-8 is fixedly connected with the connecting side plate 8-5 by using a fixing screw 8-6 located in the connecting hole and the connecting threaded hole. Further, a sealing washer is also installed on the inner side of the drawer plate 8-8, and the sealing washer is clamped between the drawer plate 8-8 and the side wall of the box body 8-1 to avoid water leakage.

[0037] The circulating water passes through between the plurality of strong magnetic rods 8-3, and the iron contained therein is magnetically removed by the strong magnetic rods 8-3. After a certain period of time, the strong magnetic rods 8-3 need to be cleaned, at which time the delivery of circulating water needs to be paused, the drawer-type strong magnetic assembly is connected with the connecting side plate 8-5 by dismounting the fixing screw 8-6, and then the drawer-type strong magnetic assembly is completely drawn out. After the iron adsorbed on the surface of the strong magnetic rod 8-3 is fully cleaned, the drawer-type strong magnetic assembly is reinstalled.

Claims

1. A device for removing impurities from a heating network, characterized in that: The system includes a filter assembly and a drawer-type iron removal assembly (8). The filter assembly includes a main pipe with a flange (1) installed at one end and an end plate (11) installed at the other end. A cylindrical filter screen (16) is installed inside the main pipe. A rotary cleaning assembly is installed inside the filter screen (16). The outer end of the rotary cleaning assembly's shaft is located in the bearing seat at the center of the end plate (11) and is driven by an external drive motor (13). A backwash assembly is also installed on the end plate (11). A water outlet pipe (6) is installed at the bottom of the main pipe. The drawer-type iron removal assembly (8) includes a box (8-1) with a top interface (8-2) at the top and a bottom interface (8-4) at the bottom. Multiple windows (8-7) are provided on the side wall of the box (8-1) in the vertical direction. A detachable drawer-type strong magnetic assembly is installed and fixed in each window (8-7).

2. The impurity removal device for a heating network as described in claim 1, characterized in that: The main pipe of the filter assembly includes a narrow diameter pipe section (2) and a wide diameter pipe section (3). The filter screen (16) is located inside the wide diameter pipe section (3). Inside the wide diameter pipe section (3), there is also an inner support (17) that abuts against the step position. The inner end of the rotating shaft of the rotary cleaning assembly is installed in the shaft seat in the middle of the inner support (17).

3. The impurity removal device for a heating network as described in claim 2, characterized in that: The rotary cleaning assembly also includes a scraper (19), which is fixedly connected to the rotating shaft by multiple support plates (18), and the outer edge of the scraper (19) is attached to the inner wall of the filter screen (16).

4. The impurity removal device for a heating network as described in claim 3, characterized in that: The backflush assembly includes a backflush water pipe (14) and a backflush water pump (12) mounted on an end plate (11), and also includes a water source pipe (15), with the backflush water pump (12) installed between the backflush water pipe (14) and the water source pipe (15).

5. The impurity removal device for a heating network as described in claim 4, characterized in that: in A drain pipe (9) is also installed at the bottom of the narrow-diameter pipe section (2), and a drain gate valve (10) is installed on the drain pipe (9).

6. The impurity removal device for a heating network as described in claim 5, characterized in that: in A pressure relief safety valve (4) is also installed on the top wall of the large diameter pipe section (3), and a pressure gauge (7) is also installed on the outer wall of the outlet pipe (6).

7. The impurity removal device for a heating network as described in claim 1, characterized in that: The drawer-type magnetic component of the drawer-type iron removal assembly (8) includes a drawer plate (8-8) with a handle. Multiple magnetic rods (8-3) are installed and fixed on the drawer plate (8-8). A fixing mechanism for fixing the drawer plate (8-8) is also provided on the box body (8-1). When the drawer plate (8-8) is fixed to the box body (8-1), each magnetic rod (8-3) is located in the inner cavity of the box body (8-1) and the center line of the magnetic rod (8-3) is perpendicular to the center line of the box body (8-1).

8. The impurity removal device for a heating network as described in claim 7, characterized in that: The fixing mechanism includes connecting side plates (8-5) with multiple sets of connecting threaded holes installed on both sides of the box body (8-1), and connecting holes are provided at corresponding positions on the drawer plate (8-8). The drawer plate (8-8) is fixedly connected to the connecting side plates (8-5) by fixing screws (8-6) located in the connecting holes and connecting threaded holes.

9. The impurity removal device for a heating network as described in claim 8, characterized in that: A sealing gasket is also installed on the inside of the drawer panel (8-8), and the sealing gasket is sandwiched between the drawer panel (8-8) and the side wall of the box body (8-1).

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